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Oracle Certified Professional: Java SE Developer 1Z0-831 (Java SE 25) · Domain 10: Implementing localization

Locale objects: language, country, Locale.of and Locale.getDefault

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Last reviewed September 25, 2026 · Leer en español

Localization means adapting a program to a user's language and region: translated text, and numbers, currencies, dates and times shown the way that user expects. Java represents a language and region choice with java.util.Locale. The locale-sensitive classes, such as NumberFormat, DateTimeFormatter and ResourceBundle, take a Locale and adjust their output accordingly.

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